Strength Training and Longevity: 90 to 120 Minutes a Week

By Longevity Lab · Published: August 11, 2026

Based on peer-reviewed research — full source list at the end of this article. This is educational information, not medical advice.

Roughly 90 to 120 minutes of strength training a week is the amount tied to the lowest risk of death, and that weekly volume was associated with about a 13% lower risk of dying from any cause. The number comes from a large study published in the British Journal of Sports Medicine in 2026, which followed more than 147,000 people for up to 30 years. That strength training helps you live longer has been clear for a while; how much of it you actually need has not. This study gives a surprisingly concrete answer, and the target is within reach for almost anyone.

What 30 Years of Follow-Up in 147,000 People Showed

Researchers analyzed data from more than 147,000 people followed for up to 30 years, a period in which about 36,000 deaths were recorded. That scale and that length of follow-up make it possible to see a link between strength-training volume and lifespan that short studies simply cannot detect.

The key result: people who spent 90 to 120 minutes a week on strength training had roughly a 13% lower risk of death from any cause than people who did no resistance training at all. That fits the wider research on strength training against sarcopenia: muscle is not only about strength, it is about metabolic health and resilience as you age.

“Strength training” here meant any form of resistance work, from free weights and machines to bodyweight exercise. That matters, because you do not need a gym membership or a barbell to get the benefit. Push-ups, squats, lunges and resistance-band work count the same as classic iron, which puts the entry bar within reach at practically any fitness level.

Why 90 to 120 Minutes, and Not More

The most practical finding is the shape of the dose-response curve. It is not a straight line: the benefit climbed quickly from zero to about two hours a week, then flattened into a plateau. Past roughly 130 to 140 minutes, extra sessions barely lowered risk any further, and some of the data suggest the effect weakened slightly at very high volumes.

For most people that is good news, because you do not have to live in the gym. Two or three strength sessions a week of 30 to 45 minutes each cover the optimal range. It also removes the most common objection, that there is no time for serious volume. Serious volume is not required.

Why Strength Training Matters More With Age

Somewhere after age 30 to 40, muscle mass begins to slip away, a process called sarcopenia that accelerates over the decades and shows up on a scan as declining Skeletal muscle mass (SMM). Losing muscle is not only about strength and appearance: muscle works as a sponge for glucose, supports metabolism, and protects against falls and fractures. That is why strength training moves, with age, out of the “for athletes” category and into basic prevention.

Preserved muscle mass is associated with better metabolic health, stronger bones and more independence in later life. In that sense, 90 to 120 minutes of strength training a week is an investment in Healthspan (healthy life expectancy) — the quality of your years as well as their number: being able to look after yourself, not fearing a fall, staying active. Tracking that directly is straightforward: a Body composition assessment splits your weight into fat and lean mass, so you can check whether the training is actually holding on to muscle.

Strength Plus Cardio Is the Best Combination for Longevity

The study also confirmed something aging research keeps repeating: strength and aerobic exercise do not substitute for each other, they stack — muscle on one side, Cardiorespiratory fitness (cardiorespiratory endurance) on the other. The lowest risk of death was seen in people who combined regular cardio with strength work. Aerobic exercise trains the heart and raises VO₂max, one of the strongest predictors of lifespan, while strength training protects muscle and metabolism.

The logic behind that addition is easy to see: the two types of load cover different mechanisms of aging. Cardio works on the cardiovascular system and endurance; strength training works on muscle, bone and metabolism. Together they give fuller protection than either one alone. So the best longevity strategy is not to choose between running and lifting, but to combine them: a few strength sessions plus regular aerobic activity across the week. To see where the aerobic half of that pairing currently stands, the companion calculator Physical form age: your VO₂max estimates your aerobic capacity from resting heart rate and activity level.

What This Means in Practice

The conclusion is simple and doable: aim for about 90 to 120 minutes of strength training a week, split into 2 to 3 sessions, plus aerobic activity. Start with basic movements for the large muscle groups, such as squats, rows, push-ups, and work with your own bodyweight or dumbbells. For how to build a program from scratch, see our guide to a training program for longevity. And if you want a benchmark before the first session, Fitness age: the age of your physical fitness rates endurance, strength, balance and body composition, giving you a number to compare against a few months later.

The entry bar is genuinely low. Even going from zero to one or two short strength sessions a week captures a real share of the benefit. A perfect program you never follow loses to a modest one you actually do.

Caveats: This Is Observation, Not an Experiment

Like most research at this scale, this is an observational study: it shows a consistent association, not proof of cause. People who train with weights regularly may differ in other habits too. Even so, the sample size, the length of follow-up and the biological plausibility make the finding a weighty one, and the recommendation itself, to do strength training, is safe and backed by plenty of other evidence.

Source: Prospective cohort: long-term resistance training with all-cause and cause-specific mortality. Br J Sports Med. 2026. PubMed →

Disclaimer. This article is for information only and does not replace medical advice. Talk to a qualified clinician before changing anything about your health.